US 1289148 A
Description (OCR text may contain errors)
E. M. FRASER.
STARTING AND LlGHTING APPARATUS.
APPLICATION FILED AUG. 14. 191?.
1,289,148. Patented Dec. 31, 1918.
2 SHEETSSHEET l.
H F1 9. 1. D
777 wwwboz ETHELBERT M. FRASER, F YONKEBS, NEW YORK.
sran'rinc AND merrrmc APPARATUS.
Specification of Letters Patent.
Patented Dec. 31, 191s.
Application filed August 14, 1917. Serial No. 186,088-
To all whom it may concern:
Be it known that I, ETHELBERT M. FRAsnR,
a citizen of the Dominion of Canada, residing at Yonkers, county of Westchester, and State of New York, have invented new and useful Improvements in Starting and Lighting Apparatus, of which the following is a specification.
My invention relates to a starting and lighting apparatus particularly adapted for use in motor vehicles, although it is likewise ap licable in other instances as will more fu y appear from the following description. One of the objects of my invention is to 15 provide in a single unitary structure a motorgenerator set com rising a stationary field structure, a rotata 1e armature, and an independently rotatable second winding interposed between said field structure and Said armature, that can be utilized for generating electric current and used as a motor for starting automobiles.
Other objects of my invention will clearly appear from the drawings and from the detailed description to follow.
An apparatus embodying my invention is illustrated in the accompanying drawings, forming a part of this specification, in which Figure 1 is aside view partly in section.
Fig. 2 is a view illustrating the manner in which my improved starting and lighting apparatus may be connected up with a gasolene engine as used in motor vehicles.
Fi 3 is a wiring diagram of my starting 1 and'lighting apparatus in connection with a starting switch, an automatic switch, a battery, lights, and horn motor. I
Fig. 4 illustrates a portion of the rotatable second winding shown in section.
In the preferred form of my device the improved starting and lighting apparatus comprises an outer stationary field structure B, an inner rotatable armature O and an intermediate independently rotatable second winding D, these three members constituting a motor-generator.
As shown in Fig. 1, the outer stationary field structure B comprises the magnet yoke and poles F, series coils and shuntroils H, constitutin one set of field magnets and coils. Secure to the magnet yoke E are the end-bells I and I, the
central portions of which are constructed so as to form hubs or bearings in which the shafts J and J, respectively, are suitably journaled.
The rotatable armature O comprises the core K, the armature winding L and the commutator M. The armature O with its commutator M is keyed or otherwise suitably secured to the shaft J.
The intermediate rotatable second winding D is made up of conductors of high electric and magnetic conductivity, so constructed and arranged as to form a single winding, provided with a commutator which is carried by the end-bell U which'is keyed or otherwise suitably secured to the shaft J. This end-bell U also forms a support and bearing for one end of the shaft The other end of the armature winding D 1;
secured to but insulated from the endwhich is rotatably mounted upon the hub of the end-bell I.
In Fig. 4 I have illustrated in section a part of this second winding D in which a is the soft iron portion made up of iron laminae, and b and 0 form the copper conductors b and 0 being insulated from each other and from the iron portion a by the insulation (Z.
Suitably secured to the hub of the end-bell I are the brushes 0 for the commutator and suitably secured to the end-bell I are the brushes R for the commutator N.
As shown in Fig. 2 my starting and lighting device may be suitably secured to the casing of the gasolene engine S by means of the strap T, although if preferred it may be secured to the engine bed or to any other adaptable part of the motor vehicle. One end of the driving shaft S of the engine S is connected the shaft J while the shaft J.
gear. Such a throw-out gear may well known illustrated diagrammatically in Fig. 2,'from which it will be apparent that as the shaft J is rotated the pinion V will move forward to engage and W, thereby rotating the driving shaft engine S. In my be the 0f the rotate the toothed fly wheel improved starting and lighting apparatus the speed ratio between the engine shaft andshaft J is preferably 2- by suitable gears and chain to i may be pro-' vided with any suitable form of throw-out Bendix gear. which I have u mg or closing the heavy lines connected through the motor" winding D to the starting switch X and to thestorage battery Z. The generator shunt field coils H which are connected in shunt across the generator armature winding L are shown in light lines in the circuit of which is inserted the switch Q for automatically closing the circuit when the current has reached a certain voltage for chargin the battery Z and which will open automatically when the voltage falls below the said predetermined amount. The lights 1, 2 and 3 and horn motor 4, with their respective switches, are connected across the battery circuit.
With my improved starting and lighting apparatus connected in the manner shown in Fig. 2 the closing of the switch X will place the batter Z in circuit with the motor winding D and the series coils G. This will cause the winding D and the shaft J twlll rotate the shaft J close thereby enabling the to rotate; the pinion V will move out on its threaded shaft so as to engage and rotate the fly wheel W thereby causing the shaft of the engine S to rotate and start the engine. As soon as the engine speeds up sufliciently so that the fly wheel W causes the pinion V to rotate faster than the shaft J, the pinion V will automatically disengage thefly wheelW and the opening of the switch X will then cut out the motor winding D coils G. The continued rotation of the shaft of the engine and the armature 0. he armature (l with its cooperating field structure B 'will then actas a generator to generate current. When this current has reached a certain voltage the switch Q will battery Z to be charged. If the voltage generated by my device should fall below the predetermined amount then the switch Q will open thereby protecting the battery Z from any discharge. it an apparatus and system arranged in accordance with my invention the battery Z may be utilized for operating incandescent lamps in the various lights 1, 2 and 3 of the motor vehicle, or for operating the What I claim is:
1. The combination with an explosive engine having a driving shaft, of a field structure having field magnets and coils, two armature windings which can move relative to each other, an armature core which is the only core for said armature windings and magnetically common to both, means intermediate said shaft and one of said armature windings connecting the two members together, connecting said other armature vwinding to and from said shaft.
2. The combination with an explosive engine having a driving shaft, of a stationary field structure having one set of field magnets and coils, a rotatable armature provided With windings, core and commutator, an independently rotatable second winding interposed between said field magnets and electric horn 4, or for supplying the energy 4 precise construction and ar- 'mutator suitably tatable shafts,
armature and concentric therewith, said core being the only core magnetically common to said armature windings and said second winding, means mechanically con: necting said shaft with said armature, and means for mechanically connecting and disconnecting said second winding to and from said shaft.
3. The combination with an explosive engine having a driving shaft, of two independently rotatable shafts, a stationary field structure havinga set of field magnets and coils,
a second winding interposed between said field magnets and said armamechanically connecting said engine shaft with said armature shaft, and means automatically putting said second winding shaft in an out of engagement with said engine shaft.
4. The combination with an explosive engine having a driving, shaft, of a stationary field structure having one set of field magnets and coils, a rotatable armature with its core and commutator, an independently rotatable second winding interposed between said field magnets and armature and concentric therewith, said core being the sole core for said interposed second w1nding, a storage battery, a starting switch in series with said battery, said field coils and said second winding, means mechanically connecting said engine shaft with said armature, and means for mechanically connecting and disconnecting said second. winding to'and from said engineshaft.
5 The combination with an explosive enfield structure having one set of field magnets, each magnet being providedwith two coils, a rotatable armature with its core,
' said armature, and
ed to open or close said generator circuit when the voltage therein falls below or exceeds a predetermined-voltage, means mechanically connecting said engine shaft with means for connecting and disconnecting said second winding to and from said engine shaft on the closing or opening of said starting switch.
6. The combination with an explosive engine having a driving shaft, of an electric motor-generatorcomprising an outer sta tionary field structure, an inner rotatable armature, and a rotatable second winding interposed between said field structure and said armature, means rotation of said second winding to said enfor transmitting the gine shaft at a suitable speed ratio, and means for transmitting the rotation of said engine shaft to said armature at a' suitable speed ratio.
7. A starting and lighting system com prising incombination an electric motorgenerator having a motor shaft, a generator shaft, a field structure provided with field magnets and coils, two armature windings each provided with its own commutator and brushes, and one armature core which is magnetically common to both armature windings, one of said armature windcoplel of this patent may be obtainei.
the current set u ings being interposed between said "field magnets and said other armature winding and secured to said motor shaft, the other of '45 said armature windings with its commutator and said armature core being secured to said generator shaft, a battery in the motor and generator circuits of said motorgenerator, a switch adapted to open or close said motor circuit, and a switch adapted to automatically open or close said generator circuit when the voltage therein falls below or exceeds a predetermined voltage.
8. The method of starting an engine and of generating electric current by means of an apparatus consistng of a stationary set of field magnets and coils, a rotatable armature provided with'windings, core, commutator and brushes, tatable current-carrying winding interposed between said field magnets and said armature and having a commutator and brushes but no core, which method consists in passing an electric current through the field'. coils to produce a magnetic flux, simul taneously passing current carrying winding to rotate,
a current through said transmitting the rotary motion of said current-carrying winding to 70 th'e driving shaft of an engineto start the same, and transmitting the rotary motion of said engine shaft to the armature whereby with said magnetic current. v 1
This specification signed and witnessed this 11th day of Au st, A. D., 1917.
ETHEL Signed in the presence of- W. C. MARGESON, WILLIAM H. BRon'r.
flux to produce electric for five cents each, addressing the Commissioner of Iatentl,
Washington, D. 0.
winding to cause said and an independently roin said armature reacts v ERT M. FRASER.